Cock for controlling fluid under pressure.



'PATBNTED MAR; 10, 19682 A IJ.,A.DYBLIE. I 000K FOR CONTROLLING FLUID UNDER PRESfiURB.

UH DST TES fn'rnnr oFFIon.

:iUtIUs'apYnLIn oF JOLIET, ILLINoIs, ASSIGNOR or ONE-HALF To HOLLIS R. McCUL LOUGH,

v or cnIcAe LLINo s.

' To elm-than a may Wm:-

cocx non coN'rnoLLmG FLUID UNDER rnnssnnnifg Be it known that I, JULIUS A. DYBLIE9 a citizen of the. United States,' residing at Jo- ..llet, 1n the State of Illinois, have invented certain new and useful 'Irnp'rovementsin Cocks for Controlling Fluid Under Pressure, of which I do declare the following to be a full, clear, and exact description, reference being hadto the accorn anying drawing, forming partof this specification.

The present invention hasmore particurovide an improved The object of the invention is to provide a sim le,'efiective and durable construction of coc 1 whereby the danger of leakage shallbe prevented and to this end the invention con sists in the features of ,ir'nprovement hereinafter described, illQstrated in the accompanying drawing and particularly pointed out: the

claims at the end of this specification.

. Figure 1 is a view in central, vertical sec tion througha blow-'ofi' cockernbodyin my invention. Fig. 2 is a view in horizonta seG'-' I tion on line 2 2 of Fig. 1, parts being shown metal.

in plan view.

1n the embodiment of my invention illustretegl in the. accompanying drawing,- the casing is forrned of two sections A and A",

these sectionsbeing preferably formed of cast The section ,A' is providedwith an inlet port a communicating, with the chamher a and this port is suitably threadedor, flanged for connection to a 'pipe thatwill unite the cock to the boiler and the casing A -.is formedwith an elongated boss ahaving an opening therein to receive the valve-stern B.

The section A of the casing is formed with a valve-seat 03 and with a d scharge port a, that leads from the chamber a on the ex 5 haust side of the valve-seat.

The sections A and A are provided with peripheral'flanges a and a that'will be bolted together as at a and preferably the valve' seat at is raised above the flanged" of the' casing section A and sets within the chamber a of the casing section A. Within the chain Specification of Letters retails. Application filed my 27,1903. Serial no. 158,906;

' within rat ent amaicn 10, mos.-

the openingof the valve'. The valveseat a is provided with acentral socket to receive the reduced lower, end I; of the valveis referably squared to receive a jsuitnble' (not shown). whereby the valve will r;

ha'n be manipulated.

' Preferably the valve B. is aplurality of' openings 6" and-corresponding .finings a? are formed: in the valve -seatn).

en the-opening'sof the valve and its Sept correspond uid will pass freely through the casing, but when the valve is turned so that its openin passa e 0' .cut 0 By reference more articularly to Fig, 2. .of the drawin s it will e seen that the va1ve B is rovide with hig's or raised portions 12"- an fb; adjacent the edge of the valve, 30

these raised'portions being adapted to con- .tact with a projection or etc a? that overhangs the v ve B between t e'lugsor raised portions 6". and 111,- and these lugs -b and,b"

- open and closed ositions of the valve.

Inasmuch'as t ed upon the pressure side of and the stop a serve to determine the'full s5 the valve-seat a the pressure of the liquid wit the chami her a will serve tornonmall hol the valve .to its seat so that danger o leak e' at such point is avoided and the jaccum lation of 'dirt scale or the likebetween the valve and its seat is thus'efiectively guarded against.

So also it will.be seen that asthe ,Wear of the valve occurs it will maintain a true bearing agaln'st its seat.

the collard) being at a slight distance from the valve the pressure of fluid within the casagainst danger of leakage around the valvestem. This provision of a collar on the s are blanked by the seat-a, the fluid through the casing willbe 75-,

e rotary. valve B" is mount- Inasmuch as the valvestem B is loosely connected to the valve B,

valve-stein for preventing the leakage of fluid around the stem, is an important feature because it avoids the necessityfor the packing of the stem and thus materially contributes to the cheapness and efliciency of the cock.

50 her a. of the casing section A and upon the pressure/side of the valve-seat a is mounted the .rotary disk-valve B, and as shown. this valve provided with a polygonal o ening vethe correspondinglyshapeci lower recei d o the aljvestemB that loosely sets- From the foregoing description it will be seen that when the valve B is tion seen in Fig. 1 of the drawings, fluid may pass freely through the casing but when the valve is turned to closed position the passsfzige of fluid through the casing will he cut and the lugs b and b and stop a enable the valve to be positively stopped in either I the full 0 en or completely closed position. 10 While have described what I. regard as the preferred form of my invention, 1 wish it distinctly understood that the invention is not limited to the precise details of construction above set out since these may be varied by the skilled mechanic, and features of the invention may be employed without its adoption as an entirety Having described my invention what I claim new and desire to secure by letters Patent is:

1. A cock for controlling the flow of lluid under pressure, comprising a casing consisting of two chambered sections bolted together, one of said sections being supplied with an admission port and a 'valve'stem o ening having a seat at its inner end and t e other of said sections being provided with a discharge port and with a raised valve seat extending within the -first mentioned section, a rotary disk valve mounted u )on the pressure side of said valve seat and aving a central polygonal o )ening and a valve stem having a correspon ing polygonal lower portion setting loosely Within the central opening of said valve and interlocking therewith to in the posiefl'ect its rotary movement, said stem being free to move at right angles to the plane of the valve and having a collar adapted to bear against the seat at the inner end of the stem opening, the lower end of said valve 40 stemloeing provided with a reduced portion journfiled within a suitable socket in said valve'seat, substantially as described.

2. A cock for controlling the flow of liquid under pressure comprising a casing formed oftwo chambered sections having integral flanges boltedtogether, one of said sections having an outlet and an integral valve seat thereon raised above the meeting line-of said sections and extei'iding within the chamber of the other of said sections, a rotary disk valve on the pressure side of said valve seat having a central polygonal opening, said second casing section having an inlet port and an integral sleeve bored to form a stem opening and provided with a raised seat at its inner end, and a valve stem extending through said sleeve and having an integral collar engaging the seat at the inner end' thereof and a polygonal lower portion set loosely within the central opening of said valve, said valve and stem being freely removable onei'rom the other and held in opposite (lllGCtlOIl-S to the respective seats solely by the pressure within the valve casing, substantiallv as described.

JULIUS -A. DYBLIE. Witnesses:

Gnoncn P. FISHER, Jr., ALBERTA AnAMrcK. 

